Abies, Ahmad, et al. “Antibacterial Effect of Cappariloside (C22H28N2O11) and Vitexlactam (C22H35NO4) Alkaloids Compounds Isolation from Capparis Spinosa Roots & Vitex Agnus-Castus Fruits”. Al-Kufa University Journal for Biology, vol. 7, no. 1, Apr. 2015, pp. 61-71, doi:10.36320/ajb/v7.i1.8092.